CN110206117B - Manufacturing method of phosphogypsum backwater recycling system - Google Patents
Manufacturing method of phosphogypsum backwater recycling system Download PDFInfo
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- CN110206117B CN110206117B CN201910523437.6A CN201910523437A CN110206117B CN 110206117 B CN110206117 B CN 110206117B CN 201910523437 A CN201910523437 A CN 201910523437A CN 110206117 B CN110206117 B CN 110206117B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
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Abstract
The invention discloses a manufacturing method of a phosphogypsum backwater recycling system, wherein a backwater device of the phosphogypsum backwater recycling system comprises a device main body, a storage cavity is arranged in the device main body, a water level device is arranged on the left side of the storage cavity and can control the water level of a phosphogypsum yard, redundant water is collected in the storage cavity, a pumping device is arranged on the right side of the storage cavity and can upwards convey yard water in the storage cavity, and the device can store and supply moisture in the phosphogypsum yard according to the real-time weather condition so as to better store phosphogypsum, realize effective backwater recycling, and can also perform other utilization on the stored yard water, realize better utilization of resources, is simple to control and is convenient for workers to control and manage.
Description
Technical Field
The invention relates to the technical field of phosphogypsum backwater utilization, in particular to a manufacturing method of a phosphogypsum backwater recycling system.
Background
The phosphogypsum recycling system has the advantages that a large amount of phosphogypsum is produced during the production of phosphoric acid, the utilization rate of the phosphogypsum is low, the environment is polluted by the large amount of phosphogypsum, the phosphogypsum needs to be stored, the storage yard water content is variable and cannot be well controlled due to the uncertainty of the rainfall times and the rainfall size, the water evaporation and the like during the storage, so that the backwater requirement and the environment-friendly discharge standard cannot be met, the management and the regulation of the storage yard water are really necessary, one month is taken as a regulation time unit for regulating the storage yard water at present, the time regulation gap is too long, and the good management cannot be achieved.
Disclosure of Invention
The technical problem is as follows:
the existing phosphogypsum backwater system cannot well control backwater according to different weather, and cannot enable the backwater to achieve the best environmental protection.
In order to solve the problems, the embodiment designs a manufacturing method of a phosphogypsum backwater recycling system, and the manufacturing method of the phosphogypsum backwater recycling system comprises a device main body, wherein a storage cavity is arranged in the device main body, a water level device is arranged on the left side of the storage cavity and can control the water level of a phosphogypsum yard water and collect redundant water in the storage cavity, a pumping device is arranged on the right side of the storage cavity and can upwards convey the yard water in the storage cavity, when the water in the phosphogypsum yard is insufficient, the phosphogypsum yard water can be returned to the yard and can be pumped out and utilized for treatment, phosphorus extraction and the like, a switching device is arranged on the upper side of the storage cavity, an energy supply device is arranged in the switching device, and the switching device can control the power connection of the energy supply device to the water level device, and then be used for controlling water level device also can with energy supply device power connect in pumping device, the simultaneous control the switching of valve in the pumping device, auto-change over device can also carry out the water conservancy diversion, will pumping device dashes the water conservancy diversion of delivering to the heap, perhaps utilizes, the auto-change over device rear side is equipped with transmission, transmission can with energy supply device's kinetic energy transmission gives pumping device.
A further technical scheme, water level device locates including the intercommunication the regulation chamber of storage chamber left side wall, gliding about adjusting the intracavity is equipped with the regulating tube, it is equipped with the lift chamber to adjust the chamber upper wall intercommunication, the gliding lower extreme fixed connection that is equipped with of lift intracavity in the lifter of regulating tube up end, be equipped with the ascending screw thread chamber of opening in the lifter, screw thread intracavity threaded connection has the lifting screw, it is equipped with opening baffle chamber to the left to adjust chamber left side wall intercommunication, the fixed sliding connection that is equipped with in regulating tube left end in the baffle of baffle chamber right side wall.
According to a further technical scheme, the adjusting pipe is communicated with the baffle plate, and a through hole penetrates through the left side and the right side of the adjusting pipe.
Further technical scheme, the pumping device is located including the intercommunication the outflow passageway of storage chamber right side wall lower extreme, outflow passageway upper wall intercommunication is equipped with the valve pocket, the gliding valve plate that is equipped with from top to bottom in the valve pocket, valve pocket right side wall intercommunication is equipped with the chamber that resets, the gliding fixed connection that is equipped with in the chamber that resets in the reset block of valve plate right-hand member face, reset block lower extreme with fixedly connected with reset spring between the chamber lower wall resets.
According to the technical scheme, the right side of the outflow channel is communicated with a water pumping cavity, a rotating shaft is arranged in the water pumping cavity in a rotating mode, water pumping blades are fixedly arranged on the circumferential surface of the rotating shaft in an annular array mode, and a pumping channel is arranged on the right side of the water pumping cavity.
According to the technical scheme, the switching device comprises a control cavity which is communicated with the upper side of the valve cavity, a control block is arranged in the control cavity in a sliding mode, the upper end of a valve plate extends into the control cavity and is abutted to an inclined plane at the lower end of the control block, a control motor is fixedly arranged in the left wall of the control cavity, the right end of the control motor is in power connection with a control screw rod in the control block in a threaded mode, a switching cavity is arranged in the upper side of the control cavity in a communicated mode, a switching rod is arranged in the switching cavity in a sliding mode, a flow guide port is arranged in the switching rod in an up-and-down penetrating mode at the right end of the switching cavity, the upper end of the pumping channel is communicated with the right end of the lower wall of the switching cavity, the upper wall of the switching cavity is located on the left.
A further technical scheme, energy supply device is including locating energy supply motor in the switching rod left end, energy supply motor is single power and is connected with power bevel gear, power bevel gear downside pivoted is equipped with engaged with transmission bevel gear, lifting screw upper end fixed connection in transmission bevel gear axle center department, energy supply motor right side is equipped with the straight gear chamber, energy supply motor right-hand member power is connected with the power axle, the power axle right-hand member extends to the straight gear intracavity is fixed and is equipped with power straight gear, straight gear chamber rear side intercommunication is equipped with the meshing chamber of opening backward, power straight gear rear end is located the meshing intracavity and with transmission connects.
A further technical scheme, transmission locates including the intercommunication switch the transmission chamber of chamber back wall, transmission intracavity pivoted be equipped with the straight-tooth post of power straight-tooth gear meshing, the coaxial and fixed drive bevel gear that is equipped with in straight-tooth post right side, drive bevel gear rear side pivoted is equipped with engaged with driven bevel gear, transmission chamber rear side is equipped with the pulley chamber, the pulley intracavity upside pivoted be equipped with power connect in driven bevel gear's driving pulley, the rotation axis rear end extends to the pulley intracavity is fixed and is equipped with driven pulleys, driving pulley with around being equipped with the drive belt between the driven pulleys.
The invention has the beneficial effects that: the storage and supply device is simple in structure and convenient to operate, and can store and supply moisture in the phosphogypsum yard according to real-time weather conditions, so that the phosphogypsum can be better stored, effective recycled water is effectively recycled, the stored yard water can be utilized in other ways, resources can be better utilized, and meanwhile, the control is simple, and the control and management of workers can be facilitated.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
Fig. 1 is a schematic view of the internal structure of a device used in the preparation method of the manufacturing method of the phosphogypsum backwater recycling system;
FIG. 2 is a schematic view of the structure in the direction "A-A" in FIG. 1;
FIG. 3 is a schematic view of the structure in the direction "B-B" in FIG. 2.
Detailed Description
The invention will now be described in detail with reference to fig. 1-3, for the sake of convenience, the orientations described hereinafter being defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a manufacturing method of a phosphogypsum backwater recycling system, which is mainly applied to the backwater recycling of the phosphogypsum, and the invention is further explained by combining the attached drawings of the invention:
the invention relates to a manufacturing method of a phosphogypsum backwater recycling system, which comprises a device main body 11, wherein a storage cavity 12 is arranged in the device main body 11, a water level device 101 is arranged at the left side of the storage cavity 12, the water level device 101 can control the water level of a phosphogypsum yard and collect redundant water in the storage cavity 12, a pumping device 102 is arranged at the right side of the storage cavity 12, the pumping device 102 can convey the yard water in the storage cavity 12 upwards, when the water content in the phosphogypsum yard is insufficient, the phosphogypsum yard can be returned to the yard and pumped out for utilization and treatment, phosphorus is extracted and the like, a switching device 103 is arranged at the upper side of the storage cavity 12, an energy supply device 104 is arranged in the switching device 103, and the switching device 103 can control the water level device 104 to be connected with the energy supply device 101, the water level device 101 is further used for controlling the water level device 101, the energy supply device 104 can also be connected to the pumping device 102 in a power mode, meanwhile, the opening and closing of a valve in the pumping device 102 are controlled, the switching device 103 can also conduct diversion, water flushed by the pumping device 102 is diverted to a storage yard or is utilized, the rear side of the switching device 103 is provided with a transmission device 105, and the transmission device 105 can transmit the kinetic energy of the energy supply device 104 to the pumping device 102;
the using method comprises the following steps: control water level device 101 through energy supply device 104, control the interior water level of storage yard according to the weather condition, when the water yield is too much, the storage yard rivers store in advancing storage chamber 12, when the water yield is too low, switching device 103 control with energy supply device 104 power connection in pumping device 102, and with the water pumping back storage in storage chamber 12 in the storage yard, when will carrying out recycle with the return water, switching device 103 control water conservancy diversion direction, then through pumping device 102 with water pumping and retrieving.
Beneficially, the water level device 101 includes an adjusting cavity 13 communicated with the left wall of the storage cavity 12, an adjusting pipe 14 is slidably arranged in the adjusting cavity 13 up and down, an elevating cavity 15 is communicated with the upper wall of the adjusting cavity 13, an elevating rod 16 fixedly connected to the upper end surface of the adjusting pipe 14 at the lower end is slidably arranged in the elevating cavity 15, a threaded cavity 17 with an upward opening is arranged in the elevating rod 16, an elevating screw 18 is connected to the threaded cavity 17 through a thread, a baffle cavity 19 with a leftward opening is communicated with the left wall of the adjusting cavity 13, and a baffle 20 slidably connected to the right wall of the baffle cavity 19 is fixedly arranged at the left end of the adjusting pipe 14;
in use, the lifting rod 16 drives the adjusting pipe 14 to lift and lower, so as to adjust the water level, and the water level is sealed through the baffle 20.
Beneficially, the adjusting pipe 14 is communicated with the baffle 20 internally, and is provided with a through hole 21 penetrating from left to right;
in use, yard water can flow from the through-hole 21 into the storage chamber 12.
Beneficially, the pumping device 102 includes an outflow channel 22 communicated with the lower end of the right wall of the storage chamber 12, the upper wall of the outflow channel 22 is communicated with a valve chamber 23, a valve plate 24 is slidably arranged in the valve chamber 23 up and down, the right wall of the valve chamber 23 is communicated with a reset chamber 25, a reset block 26 fixedly connected to the right end face of the valve plate 24 is slidably arranged in the reset chamber 25, and a reset spring 27 is fixedly connected between the lower end of the reset block 26 and the lower wall of the reset chamber 25;
when the valve plate 24 is used for controlling the opening and closing of the outflow channel 22, the return spring 27 can push the valve plate 24 to move upwards and open the outflow channel 22.
Advantageously, a water pumping cavity 28 is communicated with the right side of the outflow channel 22, a rotating shaft 29 is rotatably arranged in the water pumping cavity 28, a circular array of water pumping vanes 30 is fixedly arranged on the circumferential surface of the rotating shaft 29, and a pumping channel 31 is arranged on the right side of the water pumping cavity 28;
when in use, the water pumping blade 30 rotates at a high speed to pump water upwards through the pumping channel 31.
Advantageously, the switching device 103 comprises a control chamber 32 placed in communication with the upper side of the valve chamber 23, a control block 33 is arranged in the control cavity 32 in a left-right sliding manner, the upper end of the valve plate 24 extends into the control cavity 32 and is abutted against the inclined surface at the lower end of the control block 33, a control motor 34 is fixedly arranged in the left wall of the control cavity 32, a control screw 35 which is in threaded connection with the control block 33 is in power connection with the right end of the control motor 34, a switching cavity 36 is communicated with the upper side of the control cavity 32, a switching rod 37 is arranged in the switching cavity 36 in a sliding way, a flow guide port 38 is vertically arranged at the right end of the switching rod 37 in a penetrating way, the upper end of the pumping channel 31 is communicated with the right end of the lower wall of the switching cavity 36, a water return channel 39 is communicated with the upper wall of the switching cavity 36 and positioned at the left side of the pumping channel 31, a water outlet channel 40 is communicated with the upper wall of the switching cavity 36 and is positioned at the right side of the pumping channel 31;
when the water pumping device is used, the control motor 34 is controlled to be started, the control block 33 is controlled to move rightwards, the valve plate 24 is firstly opened, and then the pumping channel 31 is communicated with the water return channel 39 or the pumping channel 31 is communicated with the water outlet channel 40.
Beneficially, the energy supply device 104 includes an energy supply motor 41 disposed in the left end of the switching rod 37, the energy supply motor 41 is connected with a power bevel gear 42 in a single-power manner, a meshed transmission bevel gear 43 is disposed on the lower side of the power bevel gear 42 in a rotating manner, the upper end of the lifting screw 18 is fixedly connected to the axis of the transmission bevel gear 43, a spur gear cavity 45 is disposed on the right side of the energy supply motor 41, a power shaft 44 is connected to the right end of the energy supply motor 41 in a power manner, a power spur gear 46 is fixedly disposed in the spur gear cavity 45 at the right end of the power shaft 44, a meshing cavity 47 with a backward opening is communicated with the rear side of the spur gear cavity 45, and the rear end of the power spur gear 46 is located in the meshing cavity 47 and connected with the transmission device;
in use, the power supply motor 41 is activated and drives the power bevel gear 42 and the power spur gear 46 to rotate, the power bevel gear 42 is driven to rotate when being engaged with the transmission bevel gear 43, and the power spur gear 46 is driven to rotate by the transmission device 105 when being connected with the transmission device 105.
Advantageously, the transmission device 105 includes a transmission chamber 48 communicated with the rear wall of the switching chamber 36, a spur column 49 engaged with the power spur gear 46 is rotatably disposed in the transmission chamber 48, a driving bevel gear 50 is coaxially and fixedly disposed on the right side of the spur column 49, a driven bevel gear 51 engaged with the driving bevel gear 50 is rotatably disposed on the rear side of the driving bevel gear 50, a pulley chamber 52 is disposed on the rear side of the transmission chamber 48, a driving pulley 53 power-connected to the driven bevel gear 51 is rotatably disposed on the upper side of the pulley chamber 52, a driven pulley 54 is fixedly disposed in the pulley chamber 52 and extends from the rear end of the rotating shaft 29, and a transmission belt 55 is wound between the driving pulley 53 and the driven pulley 54;
in use, kinetic energy is transferred to the rotating shaft 29 by engagement of the spur 49 with the power spur gear 46.
In the initial state, the switching lever 37 is located at the left limit position, the power bevel gear 42 is engaged with the transmission bevel gear 43, the control block 33 abuts against the valve plate 24, and the valve plate 24 is located at the lower limit position, so that the outflow channel 22 is closed.
When the water level is adjusted, the energy supply motor 41 is started and drives the power bevel gear 42 to rotate, the drive bevel gear 43 is driven to rotate through gear engagement and drives the lifting screw 18 to rotate, the lifting rod 16 is driven to lift through threaded connection, the baffle 20 is driven to lift, the through hole 21 is further adjusted to be above the water level, the yard water higher than the water level flows into the storage cavity 12 through the through hole 21 to be stored, when the water content in the yard is insufficient, the control motor 34 is started and drives the control screw 35 to rotate, the electric control block 33 is connected through threads to move to the right, the control block 33 is separated from and abutted against the valve plate 24, the valve plate 24 rises under the elasticity of the reset spring 27, the outflow channel 22 is opened, the switching rod 37 is driven to move to the right to the position where the diversion port 38 conducts the pumping channel 31 and the water return channel 39, the power bevel gear 42 is separated from engagement with the drive bevel gear 43, and the, the energy supply motor 41 is started and drives the power straight gear 46 to rotate, gear meshing of the energy supply motor drives the straight gear column 49 to rotate and drives the driving bevel gear 50 to rotate, gear meshing drives the driven bevel gear 51 to rotate and drives the driving belt wheel 53 to rotate, the driving belt wheel 55 drives the driven belt wheel 54 to rotate and drives the rotating shaft 29 to rotate, water is pumped and sent through the pumping blade 30, return water is pumped and sent to the storage yard to be supplemented, when the storage yard water needs to be recycled, the switching rod 37 is moved to the right to the diversion port 38 to conduct the pumping channel 31 and the water outlet channel 40, the power straight gear 46 is still meshed with the straight gear column 49 at the moment, and the return water can be pumped and sent out to be utilized by starting the energy supply motor 41.
The invention has the beneficial effects that: the storage and supply device is simple in structure and convenient to operate, and can store and supply moisture in the phosphogypsum yard according to real-time weather conditions, so that the phosphogypsum can be better stored, effective recycled water can be effectively recycled, the stored yard water can be utilized in other ways, resources can be better utilized, and meanwhile, the control is simple, and the control and management of workers can be facilitated.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (8)
1. A manufacturing method of a phosphogypsum backwater recycling system comprises a device main body, wherein a storage cavity is arranged in the device main body, a water level device is arranged on the left side of the storage cavity and can control the water level of a phosphogypsum yard water, redundant water is collected in the storage cavity, a pumping device is arranged on the right side of the storage cavity and can upwards convey the yard water in the storage cavity, when the water in the phosphogypsum yard is insufficient, the phosphogypsum yard water can return to the yard water and can also be pumped out and utilized for treatment, phosphorus extraction and the like, a switching device is arranged on the upper side of the storage cavity and is internally provided with an energy supply device, the switching device can control the power connection of the energy supply device to the water level device, further used for controlling the water level device and also can control the power connection of the energy supply device to the pumping device, the switching device can also conduct diversion to guide water flushed by the pumping device into a storage yard or utilize the water, and a transmission device is arranged on the rear side of the switching device and can transmit kinetic energy of the energy supply device to the pumping device;
the method is technically characterized in that: through energy supply device control water level device, control according to the weather condition water level in the store yard, when the water yield is too much, store yard rivers advance to store in the storage intracavity, when the water yield was crossed lowly, the switching device control was with energy supply device power connection in pumping device to with the storage in the water pumping of storage intracavity returns the store yard, when will carrying out recycle with the return water, switching device control water conservancy diversion direction, then through pumping device with water pumping and retrieve.
2. The manufacturing method of the phosphogypsum backwater recycling system according to claim 1, wherein the water level device comprises an adjusting cavity communicated with the left wall of the storage cavity, an adjusting pipe is arranged in the adjusting cavity in a vertically sliding manner, a lifting cavity is communicated with the upper wall of the adjusting cavity, a lifting rod is arranged in the lifting cavity in a sliding manner, the lower end of the lifting rod is fixedly connected to the upper end surface of the adjusting pipe, a threaded cavity with an upward opening is arranged in the lifting rod, a lifting screw rod is connected in the threaded cavity in a threaded manner, a baffle cavity with a leftward opening is communicated with the left wall of the adjusting cavity, and a baffle plate slidably connected to the right wall of the baffle cavity is fixedly arranged at the left end of the adjusting pipe;
the method is characterized in that: the lifting rod drives the adjusting pipe to lift, adjusts the water level and seals through the baffle.
3. The manufacturing method of the phosphogypsum backwater recycling system according to claim 2, wherein the adjusting pipe is communicated with the baffle plate internally and is provided with through holes in a left-right penetrating manner;
the method is characterized in that: the yard water can flow from the through-hole into the storage chamber.
4. The manufacturing method of the phosphogypsum backwater recycling system according to claim 3, wherein the pumping device comprises an outflow channel communicated with the lower end of the right wall of the storage cavity, the upper wall of the outflow channel is communicated with a valve cavity, a valve plate is arranged in the valve cavity in a vertically sliding manner, the right wall of the valve cavity is communicated with a reset cavity, a reset block fixedly connected to the right end face of the valve plate is arranged in the reset cavity in a sliding manner, and a reset spring is fixedly connected between the lower end of the reset block and the lower wall of the reset cavity;
the method is characterized in that: the valve plate controls the opening and closing of the outflow channel, and the reset spring can push the valve plate to move upwards and open the outflow channel.
5. The manufacturing method of the phosphogypsum backwater recycling system according to claim 4, wherein a water pumping cavity is communicated with the right side of the outflow channel, a rotating shaft is rotatably arranged in the water pumping cavity, water pumping blades are fixedly arranged on the circumferential surface of the rotating shaft in an annular array, and a pumping channel is arranged on the right side of the water pumping cavity;
the method is characterized in that: the water flow is pumped upwards through the pumping channel by the high-speed rotation of the water pumping blade.
6. The method for manufacturing the phosphogypsum backwater recycling system according to claim 5, wherein, the switching device comprises a control cavity communicated with the upper side of the valve cavity, a control block is arranged in the control cavity in a left-right sliding manner, the upper end of the valve plate extends into the control cavity and is abutted against the inclined plane at the lower end of the control block, a control motor is fixedly arranged in the left wall of the control cavity, the right end of the control motor is in power connection with a control screw which is in threaded connection with the control block, the upper side of the control cavity is communicated with a switching cavity, a switching rod is arranged in the switching cavity in a sliding manner, a flow guide port is arranged at the right end of the switching rod in a vertical penetrating manner, the upper end of the pumping channel is communicated with the right end of the lower wall of the switching cavity, the upper wall of the switching cavity and the left side of the pumping channel are communicated with a water return channel, and the upper wall of the switching cavity and the right side of the pumping channel are communicated with a water outlet channel;
the method is characterized in that: the control motor is controlled to start and control the control block to move right, the valve plate is opened firstly, and then the pumping channel and the water return channel are communicated or the pumping channel and the water outlet channel are communicated.
7. The manufacturing method of the phosphogypsum backwater recycling system according to claim 6, wherein the energy supply device comprises an energy supply motor arranged in the left end of the switching rod, the energy supply motor is connected with a power bevel gear through single power, the lower side of the power bevel gear is provided with a meshed transmission bevel gear in a rotating manner, the upper end of the lifting screw is fixedly connected to the axis of the transmission bevel gear, the right side of the energy supply motor is provided with a straight gear cavity, the right end of the energy supply motor is connected with a power shaft through power, the right end of the power shaft extends into the straight gear cavity and is fixedly provided with a power straight gear, the rear side of the straight gear cavity is communicated with a meshed cavity with a backward opening, and the rear end of the power straight gear is positioned in the meshed cavity and is connected with the transmission device;
the method is characterized in that: the energy supply motor is started and drives the power bevel gear and the power straight gear to rotate, the power bevel gear is driven to rotate when meshed with the transmission bevel gear, and the transmission device drives the rotating shaft to rotate when the power straight gear is connected with the transmission device.
8. The method for manufacturing the phosphogypsum backwater recycling system according to claim 7, wherein,
the transmission device comprises a transmission cavity communicated with the rear wall of the switching cavity, a straight toothed column meshed with the power straight gear is arranged in the transmission cavity in a rotating mode, a driving bevel gear is coaxially and fixedly arranged on the right side of the straight toothed column, a driven bevel gear meshed with the straight toothed column is arranged on the rear side of the driving bevel gear in a rotating mode, a belt wheel cavity is arranged on the rear side of the transmission cavity, a driving belt wheel connected with the driven bevel gear is arranged on the belt wheel cavity in a rotating mode, the driving belt wheel is connected with the driving belt wheel of the driven bevel gear in a power mode, a driven belt wheel is fixedly arranged in the belt wheel cavity in a manner that the rear end of;
the method is characterized in that: the kinetic energy is transferred to the rotating shaft through the meshing of the spur gear column and the power spur gear.
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| CN201910523437.6A CN110206117B (en) | 2019-06-17 | 2019-06-17 | Manufacturing method of phosphogypsum backwater recycling system |
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| CN201910523437.6A CN110206117B (en) | 2019-06-17 | 2019-06-17 | Manufacturing method of phosphogypsum backwater recycling system |
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| GB2224728A (en) * | 1988-10-15 | 1990-05-16 | Andrew John Skilling | Sewage treatment plant |
| CN105601016A (en) * | 2016-03-09 | 2016-05-25 | 苏州市东方环境技术研究有限公司 | Chemical nickel waste liquid integrated processing system |
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| CN109331518A (en) * | 2018-11-30 | 2019-02-15 | 叶吉利 | A kind of domestic sewage recycle device |
| CN109834826A (en) * | 2019-04-02 | 2019-06-04 | 嘉兴咩哞贸易有限公司 | A kind of good quality concrete process units |
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2019
- 2019-06-17 CN CN201910523437.6A patent/CN110206117B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2224728A (en) * | 1988-10-15 | 1990-05-16 | Andrew John Skilling | Sewage treatment plant |
| CN105601016A (en) * | 2016-03-09 | 2016-05-25 | 苏州市东方环境技术研究有限公司 | Chemical nickel waste liquid integrated processing system |
| CN206409715U (en) * | 2016-12-28 | 2017-08-15 | 天津赛创自动化控制技术有限公司 | A kind of multifunctional motor-driven controls valve gear |
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